code: def plot_image_and_patch(ax, prng, size=(20, 20)):
      """Plot an image with random values and superimpose a circular patch."""
      values = prng.random_sample(size=size)
      ax.imshow(values, interpolation="none")
      c = plt.Circle((5, 5), radius=5, label="patch")
      ax.add_patch(c)
      # Remove ticks
      ax.set_xticks([])
      ax.set_yticks([])
  
file_path: matplotlib/galleries/examples/style_sheets/style_sheets_reference.py
imports: import matplotlib.pyplot
  import numpy
  import matplotlib.colors
  from matplotlib.patches import Rectangle
label_desc: Use image node_id 5 for calling a global function with example usage: plot_image_and_patch(ax, prng, size) without return types